Superconductivity in the regime of attractive interactions in the Tomonaga-Luttinger liquid

@article{Gosar2020SuperconductivityIT,
  title={Superconductivity in the regime of attractive interactions in the Tomonaga-Luttinger liquid},
  author={vZ. Gosar and Neic Janvsa and Tina Arh and Peter Jeglivc and M. Klanjvsek and Hui Zhai and Baiqing Lv and Denis Arvcon},
  journal={Physical Review B},
  year={2020},
  volume={101},
  pages={220508}
}
While the vast majority of known physical realizations of the Tomonaga-Luttinger liquid (TLL) have repulsive interactions defined with the dimensionless interaction parameter $K_{\rm c}<1$, we here report that Rb$_2$Mo$_3$As$_3$ is in the opposite TLL regime of attractive interactions. This is concluded from a TLL-characteristic power-law temperature dependence of the $^{87}$Rb spin-lattice relaxation rates over broad temperature range yielding the TLL interaction parameter for charge… Expand

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